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Active/Passive Vibration Control and Nonlinear Dynamics of Structures最新文献

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Relative Kinematics of Multibody Contacts 多体接触的相对运动学
Active/Passive Vibration Control and Nonlinear Dynamics of Structures Pub Date : 1997-11-16 DOI: 10.1115/imece1997-0565
F. Pfeiffer, L. B. F. Mechanik, P. Wolfsteiner
{"title":"Relative Kinematics of Multibody Contacts","authors":"F. Pfeiffer, L. B. F. Mechanik, P. Wolfsteiner","doi":"10.1115/imece1997-0565","DOIUrl":"https://doi.org/10.1115/imece1997-0565","url":null,"abstract":"\u0000 Unilateral contact problems in multibody dynamics axe always accompanied by problems of relative kinematics of the contacting bodies. A general approach for plane and spatial contacts is presented based on a parametric representation of the body contours and on rules of differential geometry. Practical examples illustrate the methods.","PeriodicalId":297791,"journal":{"name":"Active/Passive Vibration Control and Nonlinear Dynamics of Structures","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123302022","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 7
Stochastic and Resonant Layers in a Periodically Driven Pendulum 周期驱动摆中的随机层和共振层
Active/Passive Vibration Control and Nonlinear Dynamics of Structures Pub Date : 1997-11-16 DOI: 10.1115/imece1997-0575
A. Luo, R. Han
{"title":"Stochastic and Resonant Layers in a Periodically Driven Pendulum","authors":"A. Luo, R. Han","doi":"10.1115/imece1997-0575","DOIUrl":"https://doi.org/10.1115/imece1997-0575","url":null,"abstract":"\u0000 The stochastic and resonant layers in a periodically driven pendulum are investigated in this paper. The analytical solutions and nonlinear natural frequencies of the non-driven pendulum are first derived, and then the energy increments in the stochastic and resonant layers for the driven pendulum are approximated by the work done by the external excitation along the heteroclinic and resonant orbits, respectively. From these results, the approximate analytical conditions for the predictions of stochastic and resonant layers are constructed. Based on these conditions, input parameters are computed for the numerical simulations of the stochastic and resonant layers. The stochastic and resonant layers associated with the librational and rotational motions are illustrated via the Poincare mapping sections.","PeriodicalId":297791,"journal":{"name":"Active/Passive Vibration Control and Nonlinear Dynamics of Structures","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125745879","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Active Vibro-Acoustic Control of a Flexural Plate 弯曲板的主动振动声控制
Active/Passive Vibration Control and Nonlinear Dynamics of Structures Pub Date : 1997-11-16 DOI: 10.1115/imece1997-0573
F. Fariborzi, F. Golnaraghi, G. Heppler
{"title":"Active Vibro-Acoustic Control of a Flexural Plate","authors":"F. Fariborzi, F. Golnaraghi, G. Heppler","doi":"10.1115/imece1997-0573","DOIUrl":"https://doi.org/10.1115/imece1997-0573","url":null,"abstract":"\u0000 Using a Rayleigh-Ritz approximation to model the transverse vibration of the Poisson-Kirchoff plate an energy based linear coupling control (LCC) strategy, for free and forced vibrations of the plate, is developed. The controller seeks to minimize a quadratic control objective and is implemented for a reduced order model by coupling a virtual second order system with each critical mode in the quadratic control objective. The energy transfer phenomena between each mode and the controller is maximized by coupling the appropriate states of the plant and the controller. Energy is transfered from the plant to the controller where it is dissipated via linear damping.","PeriodicalId":297791,"journal":{"name":"Active/Passive Vibration Control and Nonlinear Dynamics of Structures","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131488803","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Vibration Control of Tubes With Internally Moving Loads Using Active Constrained Layer Damping 基于主动约束层阻尼的内动载荷管道振动控制
Active/Passive Vibration Control and Nonlinear Dynamics of Structures Pub Date : 1997-11-16 DOI: 10.1115/imece1997-0554
J. Ro, K. S. El-Din, A. Baz
{"title":"Vibration Control of Tubes With Internally Moving Loads Using Active Constrained Layer Damping","authors":"J. Ro, K. S. El-Din, A. Baz","doi":"10.1115/imece1997-0554","DOIUrl":"https://doi.org/10.1115/imece1997-0554","url":null,"abstract":"\u0000 The vibration of a flexible tube with internally moving load is controlled using patches of Active Constrained Layer Damping (ACLD) bonded to the tube surface. The damping characteristics of the tube/ACLD system are modeled by Golla-Hughes-McTavish (GHM) method in order to predict the tube response in the time domain. The transient response of tube/ACLD system is calculated using the finite element method. The predicted response is compared with that of a tube controlled with conventional Passive Constrained Layer Damping (PCLD) treatments. Such comparisons are essential in quantifying the individual contribution of the active and passive damping components to the overall damping characteristics of the system.\u0000 The predictions of the finite element model are validated experimentally using a cantilevered PVC plastic tube treated with an ACLD patch placed parallel to the tube longitudinal axis. The tube vibration due to an internally moving load is controlled by the ACLD patch using a simple velocity feedback controller. The effectiveness of the controller in damping out the tube vibration is determined experimentally and theoretically for different control gains. Close agreement is obtained between theory and experiments. The results obtained suggest the effectiveness of the ACLD treatment in controlling the vibration of precision pointing systems such as weapon systems.","PeriodicalId":297791,"journal":{"name":"Active/Passive Vibration Control and Nonlinear Dynamics of Structures","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131816115","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
Nonlinear Oscillations of Circular Plates Near Critical Speed 圆板在临界转速附近的非线性振荡
Active/Passive Vibration Control and Nonlinear Dynamics of Structures Pub Date : 1997-11-16 DOI: 10.1115/imece1997-0572
A. Raman, C. D. Mote
{"title":"Nonlinear Oscillations of Circular Plates Near Critical Speed","authors":"A. Raman, C. D. Mote","doi":"10.1115/imece1997-0572","DOIUrl":"https://doi.org/10.1115/imece1997-0572","url":null,"abstract":"\u0000 The nonlinear response of an axisymmetric, thin elastic circular plate subject to a constant, space-fixed transverse force and rotating near a critical speed of an asymmetric mode, is analyzed. A small-stretch, moderate-rotation plate theory of Nowinski (1964), leading to von Kármán type field equations is used. This leads to nonlinear modal interactions of a pair of 1 – 1 internally resonant, asymmetric modes which are studied through first-order averaging. The resulting amplitude equations represent a system whose O(2) symmetry is broken by a resonant rotating force.\u0000 The nonlinear coupling of the modes induces steady state solutions that have no apparent evolution from any previous linear analyses of this problem. For undamped disks, the analysis of the averaged Hamiltonian predicts codimension-two bifurcations that give rise to sets of doubly-degenerate, one-dimensional manifolds of steady mixed wave motions. These manifolds of steady motions are bounded in phase space by either mode localized backward travelling wave branches or forward travelling wave branches. On the addition of the smallest damping, the branches of the backward travelling waves with equal modal content become isolated, and numerical investigations indicate the absence of any other types of steady motions.","PeriodicalId":297791,"journal":{"name":"Active/Passive Vibration Control and Nonlinear Dynamics of Structures","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127423022","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
A Comparative Case Study of Active Vibration Suppression by Active Power Absorption 主动功率吸收主动振动抑制的比较案例研究
Active/Passive Vibration Control and Nonlinear Dynamics of Structures Pub Date : 1997-11-16 DOI: 10.1115/imece1997-0562
E. Berkman, Arch A. Owen, R. Preuss
{"title":"A Comparative Case Study of Active Vibration Suppression by Active Power Absorption","authors":"E. Berkman, Arch A. Owen, R. Preuss","doi":"10.1115/imece1997-0562","DOIUrl":"https://doi.org/10.1115/imece1997-0562","url":null,"abstract":"\u0000 An optimal SISO active power absorption algorithm has recently been developed, by the authors, that maximizes the broadband power transferred from a structure to a control actuator. In this paper, numerical performance studies are presented for a controller employing this algorithm to suppress global vibrations of a simple example beam structure. The performance of optimal power absorption control strategy based only on measurement at the actuator location is compared to the performance of an optimal Linear Quadratic Regulator (LQR) controller with the same single actuator but with full state (or modal) feedback. The power absorption strategy achieved vibration reduction similar to the optimal LQR controller over most of the frequency range examined. As expected, both of these control strategies resulted in substantially better global vibration reduction than a controller that minimizes motion only at the single actuator location.","PeriodicalId":297791,"journal":{"name":"Active/Passive Vibration Control and Nonlinear Dynamics of Structures","volume":"400 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123648659","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A Study on Predictive Control Using Short-Term Prediction Method Based on Chaos Theory 基于混沌理论的短期预测方法预测控制研究
Active/Passive Vibration Control and Nonlinear Dynamics of Structures Pub Date : 1997-11-16 DOI: 10.1115/imece1997-0564
N. Masumoto, H. Yamakawa
{"title":"A Study on Predictive Control Using Short-Term Prediction Method Based on Chaos Theory","authors":"N. Masumoto, H. Yamakawa","doi":"10.1115/imece1997-0564","DOIUrl":"https://doi.org/10.1115/imece1997-0564","url":null,"abstract":"\u0000 The main objective of this study is an application of short-term prediction method by chaos theory to vibration control. In this paper, we proposed two predictive control methods for mechanical systems. The input time series or the output time series of a mechanical system in the near future was predicted by the short-term prediction method based on chaos theory and we used the obtained time series effectively to get the control force. The algorithm of the short-term prediction method, which is based on Takens’s theorem, used in this study and a condition to have sufficient precision of prediction were discussed from practical engineering points. The effectiveness of the proposed control methods was shown by numerical results and experimental results.","PeriodicalId":297791,"journal":{"name":"Active/Passive Vibration Control and Nonlinear Dynamics of Structures","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130793785","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Vibration Absorber for Flexible Structures: Experimental Study Under Random and Sinusoidal Excitations 柔性结构的减振器:随机和正弦激励下的实验研究
Active/Passive Vibration Control and Nonlinear Dynamics of Structures Pub Date : 1997-11-16 DOI: 10.1115/imece1997-0569
O. Çuvalci, A. Ertas, I. Cicek, S. Ekwaro-Osire
{"title":"Vibration Absorber for Flexible Structures: Experimental Study Under Random and Sinusoidal Excitations","authors":"O. Çuvalci, A. Ertas, I. Cicek, S. Ekwaro-Osire","doi":"10.1115/imece1997-0569","DOIUrl":"https://doi.org/10.1115/imece1997-0569","url":null,"abstract":"\u0000 The dynamic response of a model that simulates a one-story building with a tip mass attached as a passive vibration absorber subjected to sinusoidal and random excitations has been investigated experimentally. The effect of the forcing frequency, forcing amplitude, mass ratios and frequency ratios on the system response in the neighborhood of the autoparametric region have been studied. The main objective of this study was to conduct a series of experiments for different system parameters to investigate the autoparametric interaction between the two modes of the system.","PeriodicalId":297791,"journal":{"name":"Active/Passive Vibration Control and Nonlinear Dynamics of Structures","volume":"36 3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126172497","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Integrating Active-Passive Hybrid Piezoelectric Networks With Active Constrained Layer Treatments for Structural Damping 结合主动约束层处理的主-被动混合压电网络结构阻尼
Active/Passive Vibration Control and Nonlinear Dynamics of Structures Pub Date : 1997-11-16 DOI: 10.1115/imece1997-0555
M. Tsai, Kon-Well Wang
{"title":"Integrating Active-Passive Hybrid Piezoelectric Networks With Active Constrained Layer Treatments for Structural Damping","authors":"M. Tsai, Kon-Well Wang","doi":"10.1115/imece1997-0555","DOIUrl":"https://doi.org/10.1115/imece1997-0555","url":null,"abstract":"\u0000 The goals of the research reported in this paper are to investigate the feasibility of integrating Active-Passive Hybrid Piezoelectric Networks (APPN) with the Active Coristrained Layer (ACL) or Enhanced Active Constrained Layer (EACL) treatments, identify the benefits or limitations of the approach, and provide insights toward designing such systems. It is shown that integration of APPN with ACL cannot obtain much extra damping because of low inverse transmissibility, while the APPN-EACL configuration can achieve high damping around the shunt frequency. The APPN-EACL can be synthesized to outperform the APPN, EACL and APPN-ACL configurations under both narrowband and broadband excitations. The study indicates that while EACL can outperform ACL when the demand on performance is high, it will become less effective than ACL when control effort is very limited. However, with the help of the shunt circuit, APPN-EACL can outperform the APPN-ACL system even when the limitation on control effort is high.","PeriodicalId":297791,"journal":{"name":"Active/Passive Vibration Control and Nonlinear Dynamics of Structures","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123880427","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 6
Coupled Oscillations of Spherical Gas Bubbles 球形气泡的耦合振荡
Active/Passive Vibration Control and Nonlinear Dynamics of Structures Pub Date : 1997-11-16 DOI: 10.1115/imece1997-0567
Y. J. Jang, M. King
{"title":"Coupled Oscillations of Spherical Gas Bubbles","authors":"Y. J. Jang, M. King","doi":"10.1115/imece1997-0567","DOIUrl":"https://doi.org/10.1115/imece1997-0567","url":null,"abstract":"\u0000 The dynamics of several (two, three and four) interacting spherical gas bubbles are investigated using the method of multiple scale. Numerical solutions for the steady-state amplitudes and phases of systems of two and four bubbles are presented. An interesting phenomenon observed is that of nonlinear localization, wherein vibrational energy becomes spatially localized to a single bubble (strong localization) or to a subset of bubbles (weak localization). Moreover, it is shown that the spatially extended motion (wherein all bubbles oscillate with identical amplitudes and phases, which one would obtain based upon a linearized analysis) is unstable, and thus not physically realizable, for certain separation distances.","PeriodicalId":297791,"journal":{"name":"Active/Passive Vibration Control and Nonlinear Dynamics of Structures","volume":"168 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133679038","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
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